1-1/16" ID Round Nylon Socket

30 Series Swivel Caster-Bright Zinc Finish; #20(2-1/2x3-5/8)Top Plate; Dual 2x7/8 Blue Glass Filled Nylon Wheels; Ball Bearings, 450 lb Load Capacity This Glass Filled Nylon (GFN) wheel has been extensively tested...

3" x 1-1/4" HARD Rubber Wheel ; 3/8 Bore; 1-1/2" Hub Length; Ball Bearings; 400 lb Load Capacity; Compatible with Darnell 60 series casters.

2-1/2" x 1-1/4" Neoprene Rubber Wheel ; 3/8 Bore; 1-1/2" Hub Length; Ball Bearing; 200 lb Load Capacity; Compatible with Darnell 60 series casters.

60 Series Rigid Caster-Bright Zinc Finish; #20(2-1/2x3-5/8)Top Plate; 4 x 1-1/4 Polyurethane Tread on Polyolefin Core Wheel; Ball Bearing, 400 lb load capacity

60 Series Swivel Caster-Bright Zinc Finish; #20(2-1/2x3-5/8)Top Plate; 4 x 1-1/4 Polyurethane Tread on Polyolefin Core Wheel; Ball Bearing, Radial Brake400 lb load capacity